package pro.ccy.servlet;

import cn.hutool.captcha.CaptchaUtil;
import cn.hutool.captcha.LineCaptcha;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

@WebServlet(urlPatterns = "/ccycode")
public class CodeServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //
        HttpSession session = req.getSession();
        //创建线段干扰地验证码
        //int width,int height,int codeCount,int lineCount
        LineCaptcha Captcha = CaptchaUtil.createLineCaptcha(70, 21,4,10);
        //获取验证码的值
        String code = Captcha.getCode();
        System.out.printf(code);
        //将获取的验证码存储到session中，并将键设置为ccc
        session.setAttribute("ccc",code);
        //将验证码图片响应输出流给客户端
        Captcha.write(resp.getOutputStream());


    }
}
